MD Helicopters MD Explorer - Inspection;Test; Control Cables Inspection (Area 1 and 2); Heat;Defog System Bleed Air Engine;Firewall Inspection (Area 5); Heat;Defog System Inspection

CSP−900RMM−2MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 601
Revision 28
21-40-00
HEAT/DEFOG SYSTEM
INSPECTION/TEST
1. Heat/Defog System Inspection
(Ref. Figure 601)
A. Heat/Defog System Bleed Air
Engine/Firewall Inspection (Area 5)
(1). Open L260 and R260 (Ref. Section
06-00-00).
(2). Inspect engine bleed air check valve for
condition and security. If necessary,
repair or replace.
(3). Inspect hose between right and left
engine bleed air valve and firewall
fittings for condition. If necessary,
repair or replace.
(4). Inspect bleed air firewall fittings for
cracks and indication of an air leak at
firewall gasket. If necessary, repair or
replace.
(5). Inspect bleed air flow control shutoff
valve for security and condition.
Electrical connector for corrosion. If
necessary, repair or replace.
(6). Inspect check valve to deck tube for
condition, cracks, and indication of an
air leak. If necessary, repair or replace.
(7). Close L260 and R260 (Ref. Section
06-00-00).
B. Heat/Defog Tube Assemblies Inspection
(Area 6)
(1). Remove right aft station 230.00
bulkhead baggage compartment
interior trim insulation panels (Ref.
Section 25-50-00).
(2). Inspect roof to valve tube insulation
and tape for tears and cuts that are
through to tube. Inspect for indication
of an air leak. If necessary, repair or
replace.
(3). Inspect Sta. 230.03 tube insulation and
tape for tears and cuts that are through
to tube. Inspect for indication1 of an air
leak. If necessary, repair or replace.
(4). Inspect tubes for condition. If necessary,
repair or replace.
(5). Install right aft station 230.00 bulk
head baggage compartment interior
trim insulation panels (Ref. Section
25-50-00).
C. Under Floor Tube Assemblies Inspection
(Area 1 and 2)
(1). Remove AR165, AR138, and AR129
(Ref. Section 06-00-00).
(2). Inspect tube inside/outside shields and
oxygen hose clamps for security. If
necessary, repair or replace.
(3). Inspect tube insulation and tape for
tears and cuts that are through to tube.
Inspect for indication of an air leak. If
necessary, repair or replace.
(4). Install AR165, AR138, and AR129 (Ref.
Section 06-00-00).
D. Control Cables Inspection (Area 1 and 2)
(1). Inspect control cables for kinks crushed
sleeve, and corrosion. Inspect for
galling and indication of wear. If
necessary, repair or replace.
(2). Inspect control cable handles for
security and loose or missing hardware.
If necessary, repair or replace.